Megascan blend material made but no paint brush appearing

Thanks for the replies preston. If we where to go through the process of elimination. As I two agree this could quite easily be a target layers issue. How am I to add target layers? as this is not a simple blend node it has automatically made here, as shown below in the print screen. If you need to view any specifics of the master material I’ll happily upload those aswell.
My understanding of target layers only extends to basic tutorials of albedo maps being blended through a green blend node that you add targer layers to. where as this map has many lerps and blend overlays. beyond my scope of understanding of target layer creation. cheers
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